Bangkok -- Shiv Kapur produced a strong finish for the second straight time with a closing eight-under 63, which almost brought him a second win in a row, at the Thailand Open.
Kapur, who had a closing bogey-free eight-under 64 during his win in Taiwan, had no less than 10 birdies besides two bogeys in his 63.
With 65-63, Kapur was 14-under for the weekend and was tied second with fellow Indian Gaganjeet Bhullar (67) at 19- under.
Rattanon Wannasrichan (67) totaled 21-under to complete a sensational victory, closing with a four-under-par 67 to win by two shots.
Kapur, chasing back-to-back wins, sank four straight birdies in his closing five holes to pile the pressure on Rattanon before signing for the day's best score of a 63.
Bhullar, a seven-time Asian Tour winner, impressed with a birdie-birdie finish after chipping in from 35 yards on the 18 to close with a second consecutive 67.
Kapur and Bhullar tied for second, making it the third event in last four Asian Tour tournaments that Indians had either won or finished second.
After SSP Chawrasia's win at the Indian Open, Kapur had won in Taiwan.
Among the other Indians, Jeev Milkha Singh (72) ended tied-32nd, while Shankar Das (70) and Khalin Joshi (70) were tied-42nd.
Shubhankar Sharma (72) was tied-66th, while Himmat Rai (74) and Chiragh Kumar (72) were tied-73rd. S Chikkarangappa (74) and Arjun Prasad (72) were tied-75th.
"It was disappointing to miss the birdie to get to 20- under but I am not complaining with a closing 63. I played a great round of golf. If you told me I would shoot a 63 at the start of the day, I would have taken it," Kapur said.
"The putter wasn't working too well for me on the first three days but it got hot today. I made a lot of putts except for the last hole but it's golf. I made a lot of putts coming in especially so I can't complain. Hats off to Rattanon for being a better player this week.
"I was actually telling my caddy coming down the 18th fairway that I birdied the 18th hole with a similar pin position when I won my first Asian Tour title here in 2005. We were hoping to make an even better shot this time but unfortunately I wasn't able to make the putt. It was still some good memories out there."
Bhullar said it was a great finish with two consecutive birdies to grab a share of second place.
"I played well and I thought at the end of the day, I will either win or finish inside top-five. I am very happy with the way I played. It has been very special. I hit the ball well and it was a great week all over.
"I had two chip-ins today, including one from 35 yards on the last. The other chip-in was on the par-three third. Short game was the key for me throughout the week."
Thailand's Panuphol Pittayarat battled to a 70 to finish four shots back in fourth place while compatriot Danthai Boonma grabbed fifth on 268 following a bogey-free 66.
The final round of the Thailand Open was delayed for two hours and 45 minutes in the morning due to heavy rain and lightning threats.